I am trying to send mail using postfix, I have set up all the things, the mail is going, I have set up the email using my domain i.e.
When When I am using the following code
ehlo xyz mail from:<firstname.lastname@example.org> rcpt to:<email@example.com> data Subject:Test mail from postfix
This mail is going to inbox of pqe, but the sender address is firstname.lastname@example.org, then what is the use of this
email@example.com or this mail from ?/